Home / 35,618.74-49,159.91-20,520.14

Finding the Fourth Proportional to 35,618.74, 49,159.91 and 20,520.14

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Solution

The fourth proportional to 35,618.74, 49,159.91 and 20,520.14 is: 28,321.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,618.74 : 49,159.91 = 20,520.14 : x
  2. Step 2: Convert to fraction form
    35,618.74/49,159.91 = 20,520.14/x
  3. Step 3: Cross multiply
    35,618.74x = 49,159.91 × 20,520.14
  4. Step 4: Simplify right side
    35,618.74x = 1,008,768,041.09
  5. Step 5: Solve for x
    x = 1,008,768,041.09/35,618.74
  6. Step 6: Final answer
    x = 28,321.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.